Home / 16,218.26-22,378.61-9,143.31

Finding the Fourth Proportional to 16,218.26, 22,378.61 and 9,143.31

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Solution

The fourth proportional to 16,218.26, 22,378.61 and 9,143.31 is: 12,616.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,218.26 : 22,378.61 = 9,143.31 : x
  2. Step 2: Convert to fraction form
    16,218.26/22,378.61 = 9,143.31/x
  3. Step 3: Cross multiply
    16,218.26x = 22,378.61 × 9,143.31
  4. Step 4: Simplify right side
    16,218.26x = 204,614,675.38
  5. Step 5: Solve for x
    x = 204,614,675.38/16,218.26
  6. Step 6: Final answer
    x = 12,616.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.